The Siemens 3VA2440-7MS32-0KH0 is a 3-pole IEC frame 630 circuit breaker rated 400 A continuous with a breaking capacity class C — Icu of 110 kA at 415 V AC. It ships with the ETU310M electronic trip unit configured for starter protection — short-circuit protection only (no overload function), with adjustable instantaneous pickup Ii from 3 to 15 x In. The 'M' designation means it's intended for motor starter coordination where the overload relay handles thermal protection.
Integrated accessories
Also includes the nut keeper kit for secure mounting.